IL81668A0 - Digital encoder and decoder synchronization in the presence of data dropouts - Google Patents

Digital encoder and decoder synchronization in the presence of data dropouts

Info

Publication number
IL81668A0
IL81668A0 IL81668A IL8166887A IL81668A0 IL 81668 A0 IL81668 A0 IL 81668A0 IL 81668 A IL81668 A IL 81668A IL 8166887 A IL8166887 A IL 8166887A IL 81668 A0 IL81668 A0 IL 81668A0
Authority
IL
Israel
Prior art keywords
digital encoder
decoder synchronization
data dropouts
dropouts
data
Prior art date
Application number
IL81668A
Original Assignee
American Telephone & Telegraph
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Telephone & Telegraph filed Critical American Telephone & Telegraph
Publication of IL81668A0 publication Critical patent/IL81668A0/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/06—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation
    • H04B14/066—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using differential modulation with several bits [NDPCM]
    • H04B14/068—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using differential modulation with several bits [NDPCM] with adaptive feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
IL81668A 1986-02-28 1987-02-24 Digital encoder and decoder synchronization in the presence of data dropouts IL81668A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/834,910 US4774496A (en) 1986-02-28 1986-02-28 Digital encoder and decoder synchronization in the presence of data dropouts

Publications (1)

Publication Number Publication Date
IL81668A0 true IL81668A0 (en) 1987-09-16

Family

ID=25268116

Family Applications (1)

Application Number Title Priority Date Filing Date
IL81668A IL81668A0 (en) 1986-02-28 1987-02-24 Digital encoder and decoder synchronization in the presence of data dropouts

Country Status (5)

Country Link
US (1) US4774496A (en)
EP (1) EP0240123A3 (en)
JP (1) JPS62241445A (en)
KR (1) KR870008459A (en)
IL (1) IL81668A0 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4920534A (en) * 1986-02-28 1990-04-24 At&T Bell Laboratories System for controllably eliminating bits from packet information field based on indicator in header and amount of data in packet buffer
US4831439A (en) * 1988-05-16 1989-05-16 General Electric Company Refresh system for digital signals with refresh cycle synchronization
US4888640A (en) * 1988-05-16 1989-12-19 General Electric Company Refresh system for digital signals
IL89461A (en) * 1989-03-02 1994-06-24 Eci Telecom Limited Facsimile telecommunication compression system
JP2586666B2 (en) * 1990-01-16 1997-03-05 日本電気株式会社 Predictive decoding circuit
US5201053A (en) * 1990-08-31 1993-04-06 International Business Machines Corporation Dynamic polling of devices for nonsynchronous channel connection
US5274740A (en) * 1991-01-08 1993-12-28 Dolby Laboratories Licensing Corporation Decoder for variable number of channel presentation of multidimensional sound fields
US5559832A (en) * 1993-06-28 1996-09-24 Motorola, Inc. Method and apparatus for maintaining convergence within an ADPCM communication system during discontinuous transmission
US5745524A (en) * 1996-01-26 1998-04-28 Motorola, Inc. Self-initialized coder and method thereof
US5967388A (en) * 1998-06-02 1999-10-19 B&G Plastics, Inc. Garment hanger
US6973475B2 (en) * 1999-09-18 2005-12-06 Wildtangent Dynamic scalable multi-media content streaming
US7437654B2 (en) * 2000-11-29 2008-10-14 Lucent Technologies Inc. Sub-packet adaptation in a wireless communication system
US6657563B2 (en) * 2001-05-23 2003-12-02 Sony Corporation Method and system for encoder signal processing with reduced routing
US7539219B2 (en) * 2005-05-12 2009-05-26 Radioshack Corporation Method and apparatus for synchronization of digital multimedia packets
WO2007005114A1 (en) * 2005-06-30 2007-01-11 Radioshack Corporation Apparatus for synchronization of digital multimedia data communicated over wired media

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3316547A (en) * 1964-07-15 1967-04-25 Fairchild Camera Instr Co Integrating analog-to-digital converter
US4142066A (en) * 1977-12-27 1979-02-27 Bell Telephone Laboratories, Incorporated Suppression of idle channel noise in delta modulation systems
US4323730A (en) * 1979-06-13 1982-04-06 Northern Telecom Limited Idle channel noise suppressor for speech encoders
US4450554A (en) * 1981-08-10 1984-05-22 International Telephone And Telegraph Corporation Asynchronous integrated voice and data communication system
US4437087A (en) * 1982-01-27 1984-03-13 Bell Telephone Laboratories, Incorporated Adaptive differential PCM coding
US4475227A (en) * 1982-04-14 1984-10-02 At&T Bell Laboratories Adaptive prediction
US4506358A (en) * 1982-06-25 1985-03-19 At&T Bell Laboratories Time stamping for a packet switching system
US4491945A (en) * 1982-06-25 1985-01-01 At&T Bell Laboratories Fast packet switch
US4475213A (en) * 1982-12-27 1984-10-02 At&T Bell Laboratories Digital code converter
US4538259A (en) * 1983-07-05 1985-08-27 International Business Machines Corporation System for digitized voice and data with means to compensate for variable path delays
JPS6031326A (en) * 1983-07-29 1985-02-18 Nec Corp Method and apparatus for coding and decoding dpcm
JPS6031325A (en) * 1983-07-29 1985-02-18 Nec Corp System and circuit of forecast stop adpcm coding
JPS6037849A (en) * 1983-08-10 1985-02-27 Fujitsu Ltd Voice signal transmission system
JPS6064541A (en) * 1983-09-19 1985-04-13 Fujitsu Ltd Adaptive differential pcm decoder
CA1205917A (en) * 1983-11-25 1986-06-10 Andreas H. Weirich Adpcm encoder/decoder with zero code suppression
CA1208789A (en) * 1983-11-25 1986-07-29 Peter E. Chow Adpcm encoder/decoder with improved tracking

Also Published As

Publication number Publication date
EP0240123A3 (en) 1989-05-24
JPS62241445A (en) 1987-10-22
US4774496A (en) 1988-09-27
EP0240123A2 (en) 1987-10-07
KR870008459A (en) 1987-09-26

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